摘要
采用常规压片法,对豆科黄芪属6种植物制备染色体标本进行核型分析。结果表明:体细胞中期染色体数目分别为:沙打旺、斜茎黄芪、达乌里黄芪2n=16,均为二倍体;草木樨状黄芪2n=32,为四倍体;紫云英、鹰嘴紫云英则呈现多数目性,紫云英染色体数变动范围为55～65,64条稍多,鹰嘴紫云英染色体数变动范围51～65,62条稍多,均为混倍体。核型公式分别为:沙打旺2n=2x=16=12m+4sm;斜茎黄芪2n=2x=16=10m+6sm;达乌里黄芪2n=2x=16=16m;草木樨状黄芪2n=4x=32=32m;紫云英2n=64=62m+2sm;鹰嘴紫云英2n=62=12M+50m(2SAT)。染色体核型呈现多样性。
Karyotypes were studied by conventional pressed slice method in 6species in Astragalus.The results showed that the metaphase chromosome numbers were 2n=16for A.huangheensis 、 A.adsurgens and A.dahuricus , 2n=32for A.melilotoides , from 55to 65for A.sinicus （ 64was preponderant ）, from 51to 65for A.cicer （ 62was pre-ponderant ） .The somatic chromosome numbers showed diversity among species.The karyotypes were formulated to be 2n=2x=16=12m＋4sm for A.huangheensis , 2n=2x=16=10m＋6sm for A.adsurgens , 2n=2x=16=16mfor A.dahuricus , 2n=4x=32=32mfor A.melilotoides , 2n=64=62m＋2sm for A.sinicus , 2n=62=12M＋50m （ 2SAT ） for A.cicer.The karyotype was diverse among species.
出处
《广西植物》
CAS
CSCD
北大核心
2012年第5期579-582,共4页
Guihaia
基金
廊坊师范学院重点项目(LSAZ200703)~~
关键词
黄芪属
染色体
核型
Astragalus
cromosome
karyotype
